diff --git a/testdata/version b/testdata/version
index 5d912600..75d34ee3 100644
--- a/testdata/version
+++ b/testdata/version
@@ -1 +1 @@
-2026a
+2026b
diff --git a/testdata/zoneinfo/America/Vancouver b/testdata/zoneinfo/America/Vancouver
index c9984911..1ab2eaf9 100644
Binary files a/testdata/zoneinfo/America/Vancouver and b/testdata/zoneinfo/America/Vancouver differ
diff --git a/testdata/zoneinfo/Asia/Ho_Chi_Minh b/testdata/zoneinfo/Asia/Ho_Chi_Minh
index 86e21b0f..294796a7 100644
Binary files a/testdata/zoneinfo/Asia/Ho_Chi_Minh and b/testdata/zoneinfo/Asia/Ho_Chi_Minh differ
diff --git a/testdata/zoneinfo/Asia/Phnom_Penh b/testdata/zoneinfo/Asia/Phnom_Penh
index c49800e7..2053499d 100644
Binary files a/testdata/zoneinfo/Asia/Phnom_Penh and b/testdata/zoneinfo/Asia/Phnom_Penh differ
diff --git a/testdata/zoneinfo/Asia/Saigon b/testdata/zoneinfo/Asia/Saigon
index 86e21b0f..294796a7 100644
Binary files a/testdata/zoneinfo/Asia/Saigon and b/testdata/zoneinfo/Asia/Saigon differ
diff --git a/testdata/zoneinfo/Asia/Vientiane b/testdata/zoneinfo/Asia/Vientiane
index 659e511d..78ea66fb 100644
Binary files a/testdata/zoneinfo/Asia/Vientiane and b/testdata/zoneinfo/Asia/Vientiane differ
diff --git a/testdata/zoneinfo/Canada/Pacific b/testdata/zoneinfo/Canada/Pacific
index c9984911..1ab2eaf9 100644
Binary files a/testdata/zoneinfo/Canada/Pacific and b/testdata/zoneinfo/Canada/Pacific differ
diff --git a/testdata/zoneinfo/zone1970.tab b/testdata/zoneinfo/zone1970.tab
index cd43e3d2..a9b47bcb 100644
--- a/testdata/zoneinfo/zone1970.tab
+++ b/testdata/zoneinfo/zone1970.tab
@@ -115,11 +115,11 @@ CA	+5017-10750	America/Swift_Current	CST - SK (midwest)
 CA	+5333-11328	America/Edmonton	Mountain - AB, BC(E), NT(E), SK(W)
 CA	+690650-1050310	America/Cambridge_Bay	Mountain - NU (west)
 CA	+682059-1334300	America/Inuvik	Mountain - NT (west)
+CA	+4916-12307	America/Vancouver	MST - BC (most areas)
 CA	+5546-12014	America/Dawson_Creek	MST - BC (Dawson Cr, Ft St John)
 CA	+5848-12242	America/Fort_Nelson	MST - BC (Ft Nelson)
 CA	+6043-13503	America/Whitehorse	MST - Yukon (east)
 CA	+6404-13925	America/Dawson	MST - Yukon (west)
-CA	+4916-12307	America/Vancouver	Pacific - BC (most areas)
 CH,DE,LI	+4723+00832	Europe/Zurich	Büsingen
 CI,BF,GH,GM,GN,IS,ML,MR,SH,SL,SN,TG	+0519-00402	Africa/Abidjan
 CK	-2114-15946	Pacific/Rarotonga
diff --git a/testdata/zoneinfo/zonenow.tab b/testdata/zoneinfo/zonenow.tab
index aa3a64f3..54e4485d 100644
--- a/testdata/zoneinfo/zonenow.tab
+++ b/testdata/zoneinfo/zonenow.tab
@@ -58,6 +58,9 @@ XX	-2504-13005	Pacific/Pitcairn	Pitcairn
 # -08/-07 - PST/PDT (North America DST)
 XX	+340308-1181434	America/Los_Angeles	Pacific (PST/PDT) - US & Canada; Mexico near US border
 #
+# -08/-07 - PST/PDT (North America DST) until 2026-11-01 02:00; then MST
+XX	+4916-12307	America/Vancouver	MST - BC (most areas)
+#
 # -07 - MST
 XX	+332654-1120424	America/Phoenix	Mountain Standard (MST) - Arizona; western Mexico; Yukon
 #